I am a prime number.
The double of myself is equal to the square of me.

which number am I?

What is the next number in this series?

4,12,84,3612....

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

What happened when the wheel was invented?

On the dull night when the blonde was dozing, she heard an odd clamour and she saw that there was a bizarre man with a gun simply outside her home. So she raced to the telephone to call the police, however, she can't dial 911. Why?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

What is the centre of gravity?